1. A catalyst is: a substance that changes the rate of the chemical reaction without undergoing any permanent chemical change in the process
2. Catalysts are used to speed up the chemical reaction of cracking
3. A high temperature is needed not only to break the bonds between the existing long-chain molecules but also to increase the speed of the reaction with the increased heat
1. Why is a broken pot used in the experiment?
So that the silica can act as a catalyst for the cracking experiment
2. What the purpose of the cracking experiment?
To break up the long chain molecules into more useful long chain molecules
3.
5.13 I think you need to find some more questions to answer, also - a white background for your posts would be better? Also, please add the questions to the first 3 answers
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